| AAA | Requested Requirements |
| AAD | Actual Arrival at POD |
| ACA | Actual Conveyance Arrival |
| ACC | Accepted |
| ADR | Highway Departure |
| ALR | Actually Loaded on Rail |
| ALV | Actually Loaded on Vessel |
| ANL | Train Annulment |
| ANO | Arrived, Not Ordered Placed by Destination Party |
| APU | Anticipated Pickup |
| ARD | Actual Arrival Date at Final Destination |
| ARI | Arrival Transit Location |
| ARR | Arrival Final Destination |
| ASO | Anticipated Set-out |
| BAD | Bad Order |
| BFR | Release from Bad Order |
| BHV | Bad Order Heavy Repair |
| BLG | Bad Order Light Repair |
| BOH | Bad Order - Hours to Repair |
| CCT | Crew Call |
| CG1 | Car Grade By Inspection |
| CLK | Consist Locked |
| COC | Cancellation of Conveyance |
| CRD | Cargo Receipt Date |
| CSL | Cargo Stripping |
| CTU | Crew Tie Up |
| CUL | Consist Un-Lock |
| DDL | Delivery Attempt |
| DEC | Declined |
| DEL | Deleted |
| DEP | Delivery Pending |
| DFL | Departure from Location |
| DPC | Departure Cancelled |
| DPO | Departure Overdue |
| DRM | Deramped Equipment unloaded from conveying flatcar |
| DSI | Destination Switch Interchange |
| DVA | Conveyance Diversion Approval |
| DVC | Conveyance Diversion Cancellation |
| DVR | Conveyance Diversion Rejection |
| DVS | Conveyance Diversion Submission |
| DVU | Conveyance Diversion Update |
| EAD | Estimated Arrival Date |
| EDD | Estimated Departure Date |
| EFT | Estimated Free Time |
| EQO | Equipment Ordered In |
| ERD | Estimated Arrival Date at Final Destination |
| ETA | Advanced Estimated Time of Arrival |
| EWI | Early Warning Inspections |
| EWL | Association of American Railroads Early Warning Letter |
| FCA | Carrier Does Not Possess Valid U.S. Operating Authority |
| FCB | Carrier Has an Out of Service Order Against It |
| FCC | Safety Score Indicates Inspection is Warranted |
| FCD | Carrier Check Not Performed, Data Not Available At This Time |
| FCI | Carrier's Current Insurance Does Not Meet the Minimum Level or Better |
| FCS | Carrier Data Not Found in Federal Motor Carrier Safety Administration (FMCSA) Systems |
| FDD | Driver Check Not Performed, Data Not Available at this Time |
| FDH | Driver Does Not Have Proper Commercial Drivers License (CDL) Endorsements for HAZMAT Cargo |
| FDL | Driver Does Not Have Valid/Current Commercial Drivers License (CDL) or Equivalent (Mexico or Canada) |
| FED | Trailer Check Not Performed, Data Not Available at this Time |
| FOL | Follow Up |
| FRT | From Repair Track |
| FTE | Free Time Expired Date |
| FVC | No Current Commercial Vehicle Safety Alliance (CVSA) Decal On File |
| FVD | Tractor Check Not Performed, Data Not Available at this Time |
| HAR | Highway Arrival RR Facility |
| HEB | Hold for Embargo |
| HEQ | Equipment Held |
| HMI | Hold or Miscellaneous |
| HRE | Release from Hold or Miscellaneous |
| HSP | Haulage Stop |
| HSR | Haulage Start |
| HTR | Trip Held |
| IBD | In Bond |
| ICH | Interchange Delivery |
| ICR | Interchange Receipt |
| IGT | Intermodal In-Gate Arrival at Railroad Intermodal Terminal |
| INC | Incomplete |
| INV | Association of American Railroads Inventory Move |
| IRD | In Transit |
| IRI | Ingate to Rail Interchange |
| ITS | Ingate to Rail Terminal or Satellite |
| MAL | Mailed |
| MWY | Move Away |
| NOB | No Bill at Location |
| NOT | Notified Destination Party |
| OCA | Overdue Conveyance Arrival |
| OGT | Intermodal Out-Gate |
| OID | Open Interchange Delivery |
| OIR | Open Interchange Receipt |
| ORI | Outgate to Rail Interchange |
| ORP | Ordered to Place |
| OSI | Origin Switch Interchange |
| OTS | Outgate to Rail Terminal or Satellite |
| PAC | Placement Actual |
| PCO | Placement Constructive Estimated placement |
| PEN | Pending |
| PFP | Pulled from Patron Picked up at customer location |
| PLF | Placed on Leased Track - From Customer |
| PLJ | Place at Joint Industry |
| PLT | Placed On Leased Track - To Customer |
| POS | Postpone |
| PRB | Problem Log Created |
| PUJ | Pull from Joint Industry |
| PUL | Pulled From Leased Track |
| PUR | Customer Released with No Billing |
| RAM | Ramped Loaded onto conveying flatcar |
| RCO | Conveyance Released |
| RCR | Crew and or Passengers Released |
| REB | Release from Embargo Hold |
| REC | Postal Reconsignment |
| REJ | Rejected by Shipper |
| REP | Repended |
| REQ | Equipment Released |
| RET | Receipted |
| RLO | Released Loaded from Customer |
| RLT | Released From Leased Track |
| RMT | Released Empty from Customer |
| RST | Restore Annulled Train |
| RTR | Trip Released |
| RYD | Rail Yard Move |
| SAD | Scheduled Arrival Date |
| SAT | Satisfied |
| SDD | Scheduled Departure Date |
| SEI | Seized Equipment |
| SER | Seized Equipment - Removed |
| SLA | Seal Added |
| SLC | Seal Deleted |
| SLD | Sailed |
| SLR | Seal Replaced |
| SPD | Scheduled Passing |
| SPT | Spot Date |
| STA | To Storage - Actual |
| STI | To Storage - Intend |
| STN | Stored Unserviceable |
| STP | Stored Prospective Load |
| STS | Stored for Seasonal Use |
| STU | Stored Serviceable |
| STV | Driver's Country of Citizenship Missing |
| SUS | Suspended |
| SUV | Driver Missing Approved Western Hemisphere Travel Initiative (WHTI) Document |
| TDC | Train Delay Cancelled |
| TDL | Train Delay |
| TMA | Train Move Arrival |
| TMD | Train Move Departure |
| TOD | Train Overdue |
| TPL | Trip Planned |
| TRN | Lading Transferred |
| TRP | Train Reported Passing |
| TRT | To Repair Track |
| UFV | Unloaded From Vessel |
| UNS | Unable to Schedule |
| VAR | Vessel Arrival |
| VDP | Vessel Departure |
| WAI | Waived |
| WGH | Weigh |
| WIT | Withdrawn |
| WYB | Waybilled |
| ZZX | Refuel |
| ZZY | Fuel Reading |
| ZZZ | Mutually Defined |